Shocking service!!!

My contract ended with Cell C. I was hounded for months to the extent of harassment to upgrade and enter into another contract. Finally, I went into the Cell C store at Hillcrest Corner. Not knowing what phone to upgrade to and mentioned that my son said the Huawei Nova 13 phone had a good camera so was assured this was a good phone. I as the customer, do not know what or what apps or services phones and different makes offer. Long and short of the story. I was NOT told that this specific phone does not work with the banks for Tap and Pay. I was NOT told that Huawei does not use GOOGLE as the search engine. On receipt of the phone I went ahead and transferred all my apps and found that the Tap and Pay function does not work. I phone Hauwei who confirmed that this particular phone does not allow this function. I also could not get my GMail to load. I went back to Cell C and they confirmed that Huawei would accept the cancellation. BUT now Cell C had to accept the cancellation of the contract. I was willing to just swop the phone out to one which could function. Non the less - now almost 3 weeks later I waited with no feedback as to whether the phone was cancelled and if I should return it etc. FInally I went to the shop on SUNDAY morning and handed the phone back to the manager and he said it should be cancelled within the week and that they would come back to me. It is now Thursday. NO feedback. I phoned the manager and he said he will follow up with his staff member!!!!! I do not know if the contract is canceled. I do not have the phone! I am wondering if the bill will be deducted off my bank account? I am leaving for an overseas trip next week for over a month and I told them I need this sorted out before as I need get my phone sorted out. This is such poor service. They only tell you what a damn phone CAN do.. not what it CANNOT do. As a customer one assumes all phones have the same basic functionality. What do I know! That is why a Salesperson should be trained to highlight the pros and cons so that a customer can decide what is best for them.