Reboost Energy "Competition"?

Said Company write competitions as part of Marketing Campaigns.

During '17 they offered amongst others, a BMW car, as a prize, in a competition for Reboost Energy drink.

Several days ago I received a similar offer, also about Reboost, but this time offering an Audi A3 Sedan.

To enter the competion, yyou obviously have to buy a can of Reboost, find the special number, under the ring of the can (so you have to open it) and phone it through to *120*12215#

The only number punched under the ring, I could ever find, was '22' and when I entered that number, I git a message saying, "invalid number"; not wrong number, but INVALID!

I've tried to get in touch with the Company via various email addresses and even via the Internet. Most of the addresses do not exist anymore and those that do exist, are ignoring my enquiries re the validity of the competition, as well as proof, of where such a number might be, as I seem to getting the wrong one....

Reboost is a nice product, but don't get yourself suckered into a competition, that probably doesn't exist and thereby also supporting a company, that couldn't care less about its customers...