Not My Runway!!!!

I have ordered a bra from My Runway 3 - 4 times (have lost count by now). Each time I have been sent a panty. The last 2 - 3 times upon placing my order, I have emailed My Runway Support and requested that they check the items prior to desptach to ensure that the proper items were despatched. Each time I was assured that it would be done - not so. The first time because I returned an item that was too small together with the incorrect item, upon notification and having to pay the full courier collect fee which was later partially credited, I received a R100.00 credit note which if you take into account the courier fees of R79.00 equates to a credit of R21.00. Not much of an apology for the inconvenience and the heads up to them to check the that the correct items were dispatched. I decided foolishly to give them another chance after they said they would check with the warehouse and get the issue sorted - Not sorted - bra ordered - panty delivered - escalated with management again - radio silence again - credit of ? offered - told them if it was going to R100.00 it was not worth my while. Still waiting on a response despite 2 emails and 2 calls! Thanks My Runway. I used to be a very good customer!!!!!