Poor communication

I bought the phone at ackermans in December then in March the phone was not charging, I took the phone back to them and they told me to leave it they will be sending it to repairs , I never received any communication after that 3 weeks later I got an sms with the reference number saying I need to make a payment and I did not know what Iam paying for. Then I received a call from Samsung saying I must check the quotation and I have never received any quotation they asked my email address. To my surprise the quotation was R5000 when I called the number and if I cant pay that 5000 I must pay R300 for courier fees and I was never told anything about that at ackermans they never explained anything they told me I will receive a call when the phone is ready that was it