Makro cancels order then ignores customer requests?!

I ordered an item which was on special. I placed the order online on Wednesday the 24th of October and paid for it via their Instant EFT facility.

On Friday the 26th of October I received a phone call from the local branch to inform me that they did not have the colour I had requested and offered me an alternative colour. I was happy with the arrangement and told the salesman to carry on.

On Monday the 29th of October I received the following SMS: "Makro. Your order MAK ********** has been cancelled. Please contact us if you have any queries. ********** 999"

I immediately dropped an email to their online support ********** questioning why the order had been cancelled. I received NO REPLY.

I resent the email on Tuesday the 30th of October with a copy of my Proof of Payment. NO REPLY.

Today, Wednesday the 31st of October (A week after placing the order) I resent the same email to support, and CC'd it to their customer care email address ********** NO REPLY.

I tried calling their 086... number but it just puts one on hold forever!!!