When I discovered the counter I purchased was useless, I asked for a replacement because I thought it was faulty. Instead, I was told to ship it back and they refunded my money. Seller was not interested in sending out a replacement. I wonder why? I didn't have to pay return postage either, so the cost to the seller must have been a few quid plus the refund.
I had intended to try another one at one point, as I have a little HF receiver to build that would benefit from a counter. I'm not so sue about this now. I may look around for something else.