There are many better choices than the FI9828P, but without knowing a lot more information about where and why you want a PTZ in that particular location, I wouldn't know what to recommend.
I will give you some things to consider though...
Avoid wireless if at all possible. A wireless camera is still going to need power run to it, so if you are going to run a wire to it, why not have that wire be an Ethernet cable that carries both the camera power and the network traffic? I would want a camera that is Power over Ethernet capable, and that adheres to either the 802.3af or 802.3at POE standards.
A PTZ camera is going to cost you quite a bit more than a fixed camera. Unless the PTZ camera has auto tracking (which you are unlikely to find in your stated price range) the camera is either going to spend most of its time pointing at one particular view, or is going to be following a preprogrammed patrol, or perhaps jumping to a preset based on some external event such as when another camera has detected movement. You may want to consider whether you would be better served by 2 or more lower cost fixed cameras providing you with continuous coverage of the same area that the PTZ would be able to cover.
If you really want/need a PTZ, and you don't want to spend much money, I'd suggest that you look into the Huisun cameras.https://www.ipcamtalk.com/forumdisplay.php/58-Huisun
I have one of the 10x V1 PTZs, and like it quite a bit. They are now selling 10x, 4x, and 3x V2 PTZs that you can read up on at the above forum.
You would probably have to purchase off of Aliexpress, but you would be looking at a price near that 100 GBP low end of your price range.
If you want a PTZ from a well known manufacturer that you can probably find from a UK dealer and get warranty support for, I'd look at the Dahua PTZ cameras, and find which model or models meet your needs, and then look for a good price from a reputable UK dealer. There are some Dahua PTZs that can be found on Aliexpress that are under that 200 GBP price point, but I have no idea how much of a mark up you would be looking at to get them from a UK dealer.