there is no way your getting virgin russian hair at that price hon, £250-280 is my price for indian hair. Honestly no way this is even Russian never mind virgin hon. Do your research, get recommendations from friends etc about local salons and mobile stylists, and get some consultations done. Look at their before and after pictures, and if there are current clients you could talk to about how the hair is.
There are LOTS of people out there just now trying to earn a fast buck, using substandard hair and techniques. As I said that price is for my lowest priced extensions, you will be looking at upwards of £600 for russian in shorter lengths x
ps "russian virgin euro" sounds a bit odd - usually "euro" does not mean european, it is asian hair that has been chemically treated to more closely resemble european hair. hth xx