Does the UK home Office in London ask for money for issuance of the certificate of obtaining work permit?

Absolutely NO!

Do not send any money to anyone!

All the arrangments must be handled and paid by your host family!

Those things are scam and be aware of these facts.

Hope you get a host family soon :)

Dear Carol,

as Abdullah says, that's a clear indication, that you're dealing with a scammer. Also have a look at our FAQ about scammers for more tipps how to protect yourself from scammers.

Best regards,

Maria from the cAP team