Why wait until the rate goes up, every month you wait you are losing 17, 18, 19% interest, depending on type of account and how much money you have to deposit, it is still possible to get 20, 21% on large amounts.
We have a UK HSBC account and a Turkish HSBC account, we draw sterling from our UK account at the ATM , and go inside and change to ytl over the counter and get a much better rate. Hope that helps Ian.
Baz