From May 2015 free incoming calls are no longer be available. At the same time, calls to YellowSIM numbers will be included in bundled minutes and calling between YellowSIM's will be much cheaper. Changes are due to UK regulatory requirements and affect all operators. All call costs are per minute. No set up, connection fee or daily access fee is charged. All call costs are quoted exclusive of VAT. A positive call credit balance must be maintained on YellowSIM account for it to function. SIMs with Zero balance will not receive free incoming calls. Incoming calls Fair Usage policy applies. Errors & Omissions Excepted Rates may change without notice All data prices are listed as price per MB of data.