Do you have a link of this 'Best Buy Brands' website please? I found one that matches, but it doesn't purport to be UK-based anyway.
If it looks too good to be true &/or offering a substantial discount compared to a UK retailer &/or you've never heard of it before, always do some thorough research before buying.
Your first port of call before purchasing anything, should be:
- a related Google search, several if you have to - a related website domain search click here
- checking for a geographical address, AND confirming that it matches with the particular company (more Googling, including Google maps)
- calling the number provided, & if none, do not buy
- inquiring in forums like PCA
Out of interest, did you contact the camera's manufacturer (if they have a UK base) about the faults? G