The cheapest choice is to do like me and become a support engineer; if you want a job doing properly then do it yourself !
Most
support lines
ask silly rates for support now to pay for it.
Not reasonable
you say ! You haven't been on the other end of the support line. I can assure you that 09xx reduces the number of silly calls. Oh, we still get them, but it leaves room for the deserving cases. If I came on a callout for a silly call it would cost you a Basic charge for 1.5 hours, at £40/hr, plus travel costs, plus parts (plus VAT) !
You work out the cheapest method and tell me which you'd rather pay
I don't suppose the BT Broadband support line (0870 2404650) is any good to you;
01912 184102
8)
If not, I will keep my eyes open for you just in case.