Firstly wrong order, help sms that receive late response and promises that are not kept

Firstly I went to Afrihost to purchase to 8gig + sim cards and 1 2gig + sim card as well as cancel my 15gig+ sim I had at the time. To my shock this wasn't attended to and I only realised on 1 September that my 2 8gig sim cards were loaded with only 8gigs instead of the promised 16gigs and the 2gig+ also had 2gig only instead of 4gig and also the 15gig+ sim was still active, despite having cancelled it at their offices. I followed up by sending more than 3 please help sms with the hope of being called back as promised on their site, but I only started getting call backs on Saturday despite having sent the request on Friday early morning. Fortunately the problem was finally fixed, but not on time as I expected.

Then on the 6th of September I received a call confirming cancellation and credit for the 15gig + sim card, which was fine, I was happy about that. At the same time I was told that the 15gig data would be shared between my two 8gig+ sims, at 7.5gig each at no cost. But until now nothing of that sort has been done, despite being promised by an Afrihost consultant. I have even given up on logging tickets for assistance or requesting call backs as they tend to take their time in responding and they do not stick to their promises.