Find the 'Cable' section on this forum, ask for a vermin line with 24 hour tests.
People will send you offers, prices etc by private message here.
You take one person up on the offer and copy a file they send you onto a USB stick and put it in your zgemma box to copy it to your box.
If you're happy with the line (ie less freezing) then you pay them to extend it to 6 months, 12 months or whatever.
If not, try another test line from someone else till one meets your expectations.
Job done!
A good provider will give you all the help in setting up you need, good luck!