Toung in the kiss

Hallo. I have a strange feeling about vodacom. South-african financial gurus say we need to try not to make debt. Pay off debt as much as you can. So i stayed debt free up to now. My income is mine to spend. I dont pay rent or food or anything. Because i have no debt i can't get a contract of R199 for wi-fi. I can pay it every month without hassle. Vodacom Bloemfontein. Helped me to buy a new phone LG Q6 they were very helpful the day when i bought the phone. I had to EFT some of the money into the manager's personal account and give them the rest in cash i had. When we were done they did not give me an invoice for the phone i bought. He said he will email it to me. I waited for several weeks. I called and said he will email it. When he eventually did email it, it was not for the full amount i paid. The cash was not included. I called and emailed again and the manager said they can not include the cash i gave because they cant see the cash or something like that. The invoice dont show correct amount i paid for the phone it is not right. If i end up with a problem with the phone what then? After sale survice was up to now not good at all. I send my papers for contract wi-fi. He never came back to me. I need to call them and drag out of them anything i want to know. I send an email to the manager about the phone. A question i have after about 3 months she still have not came back to me. I have their number but dont want to share it here. Toung in the kias. What is going on with vodacom? I always were only with vodacom. Their services became extra bad and their prepaid data is extremely expressive. Hope someone can help