Inconvenience caused due to incompetency

I was offered an I Pad mini plus, which I then agreed upon and took out the contract. The I Pad mini arrived a few days later, great, but with incorrect Sim card size. I should have been provided with a nano, which i was not. It caused me major inconvenience having to visit the branch twice. Upon my first visit to MTN I was informed to contact Mobile Plus as the contract is with you and that MTN could not assist me with a new sim unless I paid for a swim swop. Mobile Plus (Lee) advised me to visit the MTN branch again and request for number port. I visited the MTN branch again, called you only to find out that you are closed on Saturdays. I then opted to just do the sim swap as this had taken way to long to sort out, which was your mistake from the beginning. I request that the R136.80 fee be refunded to my account as well as petrol costs incurred having to visit the branch twice.