My best advice would be that you don't take advice from strangers, and this thread is a classic example.
If you bother to look up that record in the USPTO database, you will find that the mark is NOT registered on the Principal Register, but is merely a supplemenal registration.
A supplemental registration is a proposed mark that has been determined by the USPTO to be non-registrable, because it is descriptive. Now, descriptive terms are capable of acquiring distinctiveness through several years of continuous exclusive use, but supplemental registrations have repeatedly (yes, there are always some exceptions) been held to be an inadequate showing of rights for UDRP purposes.
So, the question is, have these holders of the supplemental registration been making continuous exclusive use in a manner which is distintive to their claimed goods and services? Google supplies a very ready answer to that question.
The repeated failure of others to obtain registration for IKIOSK on the Principal Register, also provides some useful information.
75579374 2462934 IKIOSK TARR LIVE - that's the Supplemental, but all of these went abandoned....
75625153 IKIOSK DEAD
75556965 IKIOSK DEAD
75159559 IKIOSK DEAD
There is a wealth of developing precedent on "i" and "e" prefaced generic terms, which demonstrates that the USPTO and others are catching on the the fact that "i" and "e" are normally understood to simply indicate "interactive" or "internet" or "electronic" in conjunction with the following word, and the USPTO has been regularly refusing such applications.
Now, the other point is, your "location" is the UK, so all of this information may or may not be useful to you. Be that as it may, the comment by Lwgik above is outstandingly misleading.
Standard sermon
#27 - there are lots of things in the USPTO database - some are trademarks and some are not. Relying on things people say in these forums about things they find in the USPTO database is an exercise in getting what you pay for.