DISCOVERY MILES CANT BUY ANYTHING WITH THEM

Discovery platinum card sent my husband a sms stating that some of his Discovery miles have expired due to him not using them, however he still has a number of miles of which he needs to use, so we logged on to his profile in discovery and into the mall they have on Discovery , we then went into take a lot and purchased 2 items there with this Discovery Miles order number(***) , the message read awaiting payment which was acceptable , a few days later a e-mail came from take a lot and said that the order will expire in 24 Hours as payment was not received I then called TAKE A LOT and they said to me that Discovery don't release the payment and that they constantly have issued with Discovery and that all their Discovery Miles purchases expire and are cancelled , I then called Discovery with reference numbers : *** and *** , *** and ***, they said they had a technical issue and it will be sorted out they asked me what browser I was using which I told them, then nothing happened , the purchase was cancelled I again sent them a mail to state that now the purchase has cancelled and again they ask me what browser am I using , BAD SERVICE !!!!!