If you wanted to go by what (as a civilian) you're allowed, UK customs wise, then yes there's no limit (other than that it has to be for personal consumption) but you have to provide proof of purchase and proof that they are tax paid. Your chogie cleaner at BAS won't be able to provide you with either. So either way the bottom line is, it's an allowance of 200.
No limit ONLY from the EU and EU taxes paid. Importing from outside the EU the limit is 200 regardless of the country and regardless of whether any national or local tax has been paid.