reasons, by making a statement in writing within 10 days of the receipt of confirmation. In order to meet this time limit it is sufficient to send the statement before the time limit expires. 6a. The confirmation referred to in paragraph 6, shall be provided by the provider of publicly available telecommunications services electronically to an electronic mail address indicated for this purpose by the subscriber or by similar remote communications means. The confirmation should contain: 1) the text of a modification to an agreement made by remote communications means or if the text of a modification due to its volume makes it difficult for the subscriber to get familiar with it – a reference to the provider's website where the subscriber may read it; 2) information that the subscriber has made a statement on modification to the agreement terms and conditions as well as on its scope and the time limit for introducing these modifications. 6b. If it is not possible to deliver the confirmation referred to in paragraph 6 as specified under paragraph 6a or at the subscriber's request, the provider of publicly available telecommunications services shall deliver the confirmation in a written form. 7. The subscriber shall not be entitled to withdraw from modifications made to the agreement referred to in paragraph 6, if the service provider at the subscriber’s consent, has started to provide services under modified conditions of the agreement. 8. In the absence of confirmation of the statement on modification to agreement conditions as well as its scope and the time limit for effecting the modifications referred to in paragraph 6, the time limit for the subscriber to withdraw from modifications made to the agreement shall be three months and counts from the day of making the statement on modification to agreement conditions. However, if the subscriber receives the confirmation after the time limit has started to flow, the time limit shall be shortened to 10 days from receipt of this confirmation. 9. Article 60a shall not apply to modification of agreement conditions under the procedure referred to in paragraph 6. Article 57. 1. A service provider may not make the conclusion of an agreement for the provision of publicly available telecommunications services, including connection to a public telecommunications network, to be conditional upon: 1) (deleted); 2) not concluding an agreement for the provision of publicly available telecommunications services, including connection to a public telecommunications network, with another service provider; 3) providing information or data other than specified in Article 161 (2), if an end user is a natural person. 2. A service provider may make the conclusion of an agreement for the provision of telecommunications services, including connection to a public telecommunications network, to be conditional upon: 1) providing documents confirming the ability to meet obligations resulting from an agreement towards a service provider by an end user; 2) a positive evaluation of an end user’s payment credibility, resulting from the data in possession of a service provider or made available by a business information office under the procedure defined in the Act on the provision of business information and exchange of business data of 9 April 2010 (Journal of Laws of 2014, items 1015 and 1188, of 2015, item 396, of 2016, item 1948 and of 2017, items 819 and 933); a service provider shall inform an end user of any such reservations. 3. A service provider may refuse to conclude an agreement for connection to the network or for the provision of telecommunications services with an end user, or may conclude an