Off the back of this thread, I googled places that do it locally (Shropshire). I was pleasantly surprised to see that my GP surgery does the micro suction thingumy for free. They do prioritise people with a referral from audiology to have it done, so anyone else may have a bit of a wait which is fair enough. I DIY mine with warm water from a syringe with a special silicone multi jet tip. It shifts some, but I never get the same immediate improvement in hearing I used to get after an old school syringing when they used to do that. That may just be because of age related deafness? I’ll ring the GP and get them to stick their hoover nozzle in there.