What is the use of Affidavit of Guarantee upon entering contained by UK as nanny? how can i know if employer is actual?

I have receive email from family in UK ,through www.findaupair.com relating that they want me to be employed as nanny. They send me pictures of their family. They will send me visa if i am going to acquire an affidavit of guarantee from Crown Court through Adams Chambers with contact+447024038297. They told me I can receive 2100pounds monthly salary and 100pounds allowance/week? is this believable? i don't know much is the basic net in london for a nanny like me. When i mail this chamber he asks me to send passport size picture, valid ID and Affidavit of guarantee fee costs 420pounds.
Answers:   
I have looked at that site www.findaupair.com and adjectives i find is it's a scam. There even a forum about this scam site. There is a huge different between a nanny and Au Pair. A nanny has training.
The International Nanny Association defines a nanny as an individual "employed by a house on either a live-in or live-out basis to undertake adjectives tasks related to the care of children. Duties are generally restricted to childcare and the domestic tasks related to childcare. Nanny's work week ranges from 40 to 60 hours per week. Usually works unsupervised." Nannies vary within age and experience. There has been a marked increase surrounded by the last decades in the numbers of professional nannies, nannies who are in the area as a career, not as a temporary stop gap while they opt on college, other work, etc.

An au pair is a young foreign student on a cultural exchange program entering this country on a J-1 visa. An au pair works no more than 45 hours a week and the stay surrounded by this country is generally limited to one year. A small portion of au pairs are classified as elite au pairs and qualify for a two year visa. The visas are non-renewable. The stated purpose of the au couple program is one of cultural exchange. The child care experience of the au pair is generally controlled and families are often not able to check the au pairs reference themselves. The au pair cannot have sole charge of a child under 3 months of age. They must own specific, verified training and experience to provide sole charge care for children under 2 years and special needs children. Other program restrictions apply

A unadulterated English nanny is look at site below Source(s): http://www.norland.co.uk/
This is a scam. You don't need Affidavit of Guarantee. An Affidavit of Guarantee is something a company would fill out, not an employee, guaranteeing that they are responsible for your employment for a unquestionable length of time. It is just a document on company letterhead signed by an officer of the company. It doesn't cost anything, and is not filled out by the employee. It is also not a requirement for a UK visa. Also that number is a Premium Rate number, not an department number.

There is no Adams Chambers either. That name comes up again and again on scam sites
http://www.data-wales.co.uk/nigerian_lau…
http://419.bittenus.com/johnadams/
http://www.fraudwatchers.org/forums/arch…


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How much time i requirement to keep on till i bring 10 years green card by e-mail after getting approval surrounded by the inteview?
Its usually about 30 days ..it comes in the regular mail