@Sandra856
OK, I understand, you used the voucher for the trip when booking, but virtually lost the value of it when you wanted to extend......Geezz this lot have something to answer for, they are like Hydra, they give with one head and take away with ten!!! They make sure they don't miss out!
It may be that your host is not presently contactable but, it would be nice if he helped out here.
I find myself in this situation on odd occasions but I have learned to work it out with the guest....it does seem that CX are too bound down with rules and although they are easily contactable they can sometimes complicate a situation rather than help it!
As far as the voucher is concerned, I just get one voucher a year and Sandra I don't complicate things I just use it to book somewhere and it all seems to work ok, but hey, I feel for you in this situation.
And, great that you did but, don't thank me for the words, you have earned every single one of them! I thank hosts like you because that is how I learned.
Cheers.......Rob