Bad service and incompetence

Today I took my car for service, only to be told by Mazda that, they are unable to proceed because Liquid capital did not approve, I then called LC spoke to Kamogelo Kgokong who was not willing to listern nor explain, I then had to ask him to speak to his Supervisor, Amanda Ziqubu and explained that I have been paying R597. 88 every month for over 4/5 years, I never skipped a payment, as she was telling me they did not get payment for Nov, but they never informed me, by call, email or sms, though they deducted for Dec, so I came up with a solution to make arrangement that they deduct double end Jan, because now it's an inconvenience for me, I don't have that money now.... she RUDELY said Nooo, you must go take your car back ftom Mazda, I eill send you sms with our banking details, we CAN'T help you.... Seriously!! Is that how you treat your clients? So rude...? I m NOT happy at all and I m taking this to Ombudsman.