Bad service at Weelee

Very bad service at Weelee Midstream.We bought a car cash and found the aircon not working properly.Weelee informed us to take the car to a place in our area to check the fault.They regassed it and we paid and sent invoice to Weelee.It has been over a month now and no refund has been done.If we enquire the sales person informes us it needs to be approved.Also we paid for registration and numberplates and sent the invoices to the sales person on 20th December.Just no comment from him and no refund yet.Will think twice before doing business with this company again.