Can't advise on how to 'recover' your £7.73 (did you pre-pay in some way?) and, in any case, they've not been at the top of the tree for residential telephony money-saving for some time.

In isolation, there are much cheaper ways to make international calls (I assume you pay your line rental to BT).

1. Check for the cheapest provider for the country you want on the MSE International Callchecker or on Niftylist;

2. If all the countries you call are included in the following 28 - Australia, Austria, Belgium, Canada, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Jamaica, Luxembourg, Malta, The Netherlands, New Zealand, Norway, Poland, Portugal, Slovenia, Spain, Sweden, Switzerland or USA - consider signing up for Euphony's £7.25/month euTalk+12 or £4.33/month euTalk+18 CPS service.

If you're, even for a moment, considering Talk Talk Justin, please have aread of the below post on MSE first!

http://forums.moneysavingexpert.com/showpost.html?p=2997071&postcount=95

jamesbond wrote on Sep 22^nd, 2006 at 9:04pm:

I was with them for a number of years too but, unfortunately, the 'amalgamation' of Tele2, OneTel, Talk Talk, Carphone Warehouse, JustDial et al appears to have been the start of a downward spiral, certainly on the customer services side.

I got my refund today by cheuqe i know this took long but in the end i won