That'll be £250 at least so unless your knob is hanging off I'd avoid and go with an Amazon test.
Do you have a missus?
Don't pay £250 unless it's hanging off?
most STIs aren't visible & can show no symptoms so you are willing to forgo a check because you want to save a few quid? Llf.
So you'd happily see WGs and give whatever to your missus due to being a tight arse.
Wouldn't trust anything ordered off of amazon for a health check.
Best go to gum clinic at the hospital where it is free & done correctly by doctors if you can't pay for private.
Have some pride in yourself ffs.