A wind-up letter by a cheeky Tennent's fan who claims he has written to the beer firm to ask for a giant sesh in their WellPark Brewery in the East End of Glasgow has gone viral. 

SD Ritchie posted the hilarious letter on Facebook. 

But 'Tennent's' have since denied it was them who responded - and the letter, has got the internet talking.

The 'reponse' reads : "I am writing in reply to your letter dated January 25 in which you enquired about whether we would let you "hold a giant sesh" in our famous Wellpark Brewery. Unfortunately we do not let anyone, "sound as f**k" or not, hold parties on our premises and in fact it would be a violation of business and licensing laws.

"While I have no doubt that Smiddy knows "how to get the burds game as f**k after a few tinnies" and your music taste is as good as those YouTube links to the DJ Hikky and Rankin tracks that you kindly provided suggests, it is simply impossible. I'm not sure if it was typo or a drug reference when you said your mate's wee sister loves to get wined and lined but it won't be happening in this establishment.

"I wish you the best of luck in planning your 5th anniversary party of the time Deano p**mped Chic's missus" and I recommend you try licensed premises in the Coatbridge or Airdrie area."

The letter continues, "PS It is poor form when wrting to a drinks company asking for a favour to say that you "prefer tonic to the p**swater that you c***s try to punt as lager but it's cheap as f**k and a bevvy's a bevvy."

The letter has become a viral hit since SD Ritchie posted it on Facebook with hundreds of shares and comments.  

He joked, "F**k sake, I literally can't even organise a piss up in a brewery."

George Kyle, the REAL head of PR at Tennent’s Lager, said: “We’re glad to say that the letter isn’t actually real.

"Poor Deano hasn’t had his heart broken and we’ve absolutely nothing against Airdrie and Coatbridge.

"Someone’s just gone to extraordinary lengths to try and get a free pint – or a few retweets on Twitter.”

In Glasgow, a bevy sesh used to describe drinking a lot of alcohol over a small period of time or binge drinking.