Chantelle from Vodacom, you are 5 star

I order a cellphone from Vodacom the 18th of October 2018. To make a long story short, I received the wrong phone. Ram Couriers collected the wrong phone from me the following day, still sealed in its original package. After a HUGE fight with Vodacom and Ram Couriers, I eventually received the correct phone. At the end of the month, I was billed for both contracts. I then contacted Vodacom and I was informed that they will credit me the following month. I received my bill yesterday and as I suspected, there was no credit. I then contacted them and within 5 minutes, I received a call from Chantelle. She informed me that the phoned that I returned, was still active. Vodacom never cancelled the contract, but yet they have proof that they received the phone and that the fault was with Vodacom. My question to Vodacom is, how can someone tell you that you will be credited the next month, but still keep the contract active. One thing I have to say is, Chantelle from Vodacom, you really helped me so much today, therefor I will give you a 5 star. Keep it up. I just hope that my bill will be credited.