Hi Guys,
Just to let you know a few issues can arise when dealing with stores in the USA:
1) Calculate their USA shipping costs into your calculation
2) Sales tax could be charged, depending where you are shipping
3) This is big: They wont deal with you as your credit card is non-US. Full stop. They wont even try process no matter what you tell them (newegg is an example of such)
4) Myus has quite a few 'hidden' charges - packing fees, invoicing fees etc.
5) Ship a few times using myus and you will need your own import code etc. This code is used by SARS, so just be aware they know how many items you import etc.
I've used myus in the past, and stopped using them. You need to get some major shipping weight before it becomes cost effective. Even with quite a few friends doing it at the same time, 90% of time things ended up more expensive than in SA.
As mentioned, you under-declare items, they break, you can do nothing. So just be aware of the trade off. No insurance vs. VAT savings.
Just have your shipment stopped 'for inspection' by customs, when you under-declare. You will have to produce original documents, pay fines, and wait a few weeks. Or they will just impound it all.
We now handle all our own freight etc to reduce costs.