I want my number back

Mobile plus is worse service ever december they blocked my number saying i didnt pay for 14 months, where the hell have u being for 14 months not noticing that i didnt pay now, and the said i must pay 500 and some change which i did, after i paid they said it will take 30 working days so that my number could be active, i wanted the recording and the terms and conditions and they couldnt provide me, when i call today they say they didnt get the proof of payment but the money is in thier account you have my i.d as a reference number what more do you want, whos fault is this i didnt have my number the whole of december and lost most improtant calls because of mobile plus incompitance... i already payed you guys i just want my number back, i must waist more money faxing to you what i alread did before. I want the terms and conditions for our contract and the contract it self