ANNOYED

So I went to vodacom 4u Clearwater on the 24th of October. I paid my vodacom account in store. Somehow lost the slip luckily I have proof on my statement of payment. Got my new statement in November show that I am behind on my payment. I was confused send vodacom a Facebook message. They rep**** to say the following "Hi Shannon-lee, Have you discussed this with the store manager?" and to tell them how it goes. Anyways I phone vodacom call center q very friendly lady helps log a query. No reply did send my statement to *** and still no reply went to the store 28th of November tell them what is going on. Then they said the manager is so busy I must leave my details they will phone as soon as he is a available( still awaiting that call) because they cannot track anything. Last week phoned the store explained everything again. Once again they took my details still NO RESPONSE!! HOW THE HELL CAN VODACOM NOT TRACK A PAYMENT MADE IN STORE!! WORST CUSTOMER SERVICE EVER! IF YOU CONSIDER OPENING A VODACOM CONTRACT DON'T ! Vodacom VERY DISAPPOINTED WITH THIS **** SERVICE