They are scammers plain and simple. It's troubling that you would get this far into the transaction without figuring this out.
Their website was just registered which makes their scam all too obvious especially when the first line of their website says: "OAO "Tonaroil" is in the market of petroleum oil and gas products for over 2 decade.
state: REGISTERED, DELEGATED, UNVERIFIED
org: OAO" TONAROIL
Any request for any kind of advance fee is always a scam, especially a "Transaction Allocation Code" but you should have been able to figure out they were scammers long before they asked for that if you had done any any due diligence at all. Besides looking at the registration date of their website you could have simply Googled their name and you would have seen this: http://www.petrofinder.com/carbon/ca...ad.php?id=3361
No real company would not even have a dedicated fax line as they are using a mobile number for both fax and telephone.
This is a field where an inexperienced trader should not tread as there are many more scammers than real oil companies.
Please read: Russian Oil Company Scam
Identifying Obvious Scammers and Their Websites
(Russian Oil Scam)
Head Office Address:
Promishlennaya zona house 6, 76 Moskovskaya 142635 Russia Federation.
Contact telephone numbers
Sales & Commercial Director
Alexander Vladimir Ivanovich
Fax : +7(499) 7558446
Head Of Foreign international relations.
Victor Nikolay Pavovich
Tel. +7(499) 755-8446 / Fax:+7(499) 755-8446