Dear Monica,
I am writing to you to reply to your questions. You wanted to know something about two biggest banks in London. I found some information about them.
The first one is the 'Bank of British Savings'. They offer 2,7% rate of interest and the other one- 'Mobile Bank' gives you 2,8% and 3,4%. In my opinion the latter one is much more interesting.
The two banks are very different from each other. The 'Bank of British Savings' has about 500 branches and you can find it in almost every town all around Great Britain. The 'Mobile Bank' is the one in which you can do everything by the phone. It is available 20 hours a day- from 4 AM to midnight.
The interesting thing is that in 'Mobile Bank' you have a chance to win several presents. Being their customer, you may get sport clothes, bags and watches. On the other hand, when you visit the 'Bank of British Savings', you will always be served in a very nice atmosphere. You will be offered coffee and something to eat. You will never be kept waiting too long.
Both banks give you free credit cards.
That is all that I got to know about the banks. In my opinion the 'Mobile Bank' is more profitable. If I were you, I would choose this one.
However, take your time and perhaps ask someone else for advice. I hope to see you soon in London.
Love,
MMM