Contract cancellation, prepaid number cancelled

I app**** to cancel my contract with you on 8 April 2015, and to keep my cell number to use as pre-paid. This was not done. After I queried this twice, with no feedback from you (apart from a service survey!), you have finally cancelled my contract 3 months later. I am not responsible to pay any amount beyond 8 May. Please rectify this and reinstate my cell number. This is my second report to Hello Peter. Lets hope this time you can sort it out.