Hi Hannah,
Welcome! I'm not sure if someone has already suggested this but find your local Astronomical Society and see when they are getting together for a Star Party i.e. viewing session and go!
Here is a link to a list of Astronmical Soceties across Britain
http://www.xyroth-enterprises.co.uk/ukas.htm
You might be pleasantly suprised to find that some members will not mind practically giving away a telescope they own which has been collecting dust for years or sell it to you cheap, and it would almost certainly be better than anything you can buy for £75 , you may be even able to borrow one and test it so to speak.
Best of luck
