Builders Warehouse Disappointing e-commerce Service

On 13 Dec and 3 Jan I placed orders with Builders Warehouse online, to be delivered to a shipping company in Edenvale. (I Live in Zambia and a number of us shop from Woolies, Pick n Pay etc and deliver to the shipping company in Edenvale and it gets shipped to Zambia). Both shipments were to be delivered within 3-5 working days. On 27 December I emailed Builders to find out what was happening with my order. Apparently there had been some issue - something to do with SAP and e-commerce - and was told this could only be resolved when the team returned on the 11 Jan! Since then I have sent numerous emails and contacted Builders via facebook messenger. I have given them my Zambia phone number, but they keep telling me that they can't get hold of me (since beginning of Jan). I do not buy this as i make and receive international calls daily to SA, Australia etc and no problems. To top it, today I was asked to give them a SA number so that they could contact me - and I live in Zambia! I did at some point receive a notification that part of my one order was cancelled. I don't know whats happened to the other order. The reason I shopped with Builders, was that I had a burglary and had to replace my back door. The items I was ordering were bolts, door handles etc to ensure my door was secure (I could not get the right fittings at Builders Zambia). So instead of having a secure door before Christmas, I am still chasing down orders and payments. If this was just a system error, i will gladly re-order, but do not want to do this until I know where I am at with the 2 original orders. I believe i have given them every opportunity to resolve this and communicate with them (despite the absence of feedback) and this is why I am trying HelloPeter. I would like to believe that Builders has the capacity to make international calls and that someone will call me to resolve the issue so that I know how to proceed. Thanks