Order delivered wrong twice

I am dissapointed in my order..on theb9th July I placed an order for croc boot..i recieved my order on the 11july just before 2 o'clock.. I opened the box and saw the shoe size was incorrect I immediately call superbalist and then I get told only collection on Monday...however Monday came they collected the box before 10 am...I was messaged on Tuesday that the order was processed..I then received email it was being shipped so will be delivered on Monday day 21 July.. I was very upset about it..but superbalist couldn't care...I received a sms thurday to say order out for delivery Friday today ...however I received a call this morning at 10.37 order arrived ...I opened the box immediately and what a surprise again the incorrect size..now this is call really really bad service..I immediately called superbalist I complaint gow can you get the same order wrong twice..how..who checks this..I asked for refund immediately and was told order needs to be collected ...so they mess it up and makes me feel like I was wrong...I then check to order again and see but they have my size as requested in the 1st order ...so how did they get this wrong ..superbalist I'm done with you guys ..ive had really bad experiences now..up until now no one collected it and even called me to try and sort this out.. they so u professional..how do you take money and you cannot even try for the customer.. your after sales is very bad...so an entire day went bye you couldn't collect the shoes which you sent incorrectly and to top it off had ot brought from cape town ..I won't leave this here..this has not been fair at all..