Customer services

I was at the store to collect the fridge which i bought cash and had transport for, at the time for collection i was told that the fridge was not on their systems where i was taken back to the counter for the invoice which they refused to give, as they couldn't't help me where I even spent my rest of the day asking for help but no one bothered to help me. The manager by the name Ben also failed to help me where we even ended Arguing and was not helpful at all as he was giving me a Bad Attitude. I left their store to OK Furniture store where i bought the fridge everything was well done, so till to date I haven't received my money which they promised to refund me same day. I will never recommend anyone to go to that store at any given time. Now that is Tuesday and haven't received my money i cannot do my things. Ben did not take me seriously and i think its best he leaves the store because his role as a manager is not well done.