Creating A US\Canadian PSN Account For Cheaper Games.
Deals
The US/Canada stores usually have far better deals than the UK store. Canada being the cheaper of the two most times at the moment due to the currency. The games can be played using your UK account and still give you trophies etc. Setting up a Canadian\US account is very simple. This guide should help you. Change from US to Canada if needed.
https://www.nowgamer.com/ps4-how-to-buy-us-digital-psn-games/
To top up the account you will need to buy credit. The best way is usually from Amazon.com or Amazon.ca. Adding a US\Canadian billing address (google one) to your account allows you to buy the cards. Your bank may charge to buy in other currencies so make sure you are using a card with no charges.
Alternatively you can buy credit from places like this:
There is going to be a flash sale tonight on the NA stores so may be some good deals to look out for.
This site lets you know any new discounts and lets you pick which regions store:
Join for free to get genuine deals, money saving advice and help from our friendly community
Chief Bargain Hunter