Dissapointed with Getbucks

I have been a loyal paying customer for months now. For some reason my credit score is low with Getbucks and some of my information is incorrect. I have never missed a payment and some of my loans I settle before they are due. It shows on my profile that I can get another loan only to be advise by a consultant I may not get it because of my credit score, stuff the fact that I never missed a payment. I will let my existing loans go off as normal and delete my account. They changes their policy's to suit them. My one loan was due for the amount of R1762.34 ( this was the last instalment and according to the total repayment amount ) but for some reason Getbucks decided to take R1900 ??? This is ridiculous service and that they cannot take into consideration the needs of a loyal customer.