Putting shop on vacation.

[fitch1437]

I'm away for 5 months so cannot sell.Can I freeze my account(to avoid fees) and reinstate it when I return?

[nobody*s_perfect]

No.

[labs118]

Here is the UK help page for Shops
As already answered you have a shop you have to pay the fee even if your away

https://www.ebay.co.uk/pages/help/sell/placing-store-vacation.html

https://www.ebay.co.uk/pages/help/sell/stores.html

You'll still be charged the normal fees (such as your eBay Shop subscription fee and listing-related fees) while holiday settings are on.

You can also access this in Seller Hub > Marketing > Manage your brand > Holiday settings.