Complaint

Vodacom gave me a contract last year and they gave me data for 2months n they stopped the contract ,they never deducted nor send me an invoice,last week i was contacted by a dept company saying vodacom has handed me to them n i asked them how come because they never contacted me to ask or tell me they could not deduct,today i called vodacom they said they sent me an sms which i never received they dont see a record saying they called the worst part is they a lying and saying they gave me data for 3months when i ask them why i owe so much money they are not even attempting to send me an invoice they are messing up my credit record (am so angry that they want me to pay so much money