Hello and thanks for requesting me.
Sadly because you have had it repaired you can't ask for a replacement.
At this stage you can only insist on another repair.
Under the Sale of Goods Act when there is an initial fault you have a right to replacement, refund OR repair.
If you pick repair over replacement if there are future problems you cant then demand a replacement
So once it has had a repair then sadly you can only get further repairs
I am sorry if this is not the answer you wanted and certainly not the one I want to give you but I have a duty to be honesr
* honest *
Can I clarify anything for you about this today please?