For the name change the seller of your ticket is updating the details before transferring the tickets to you.
It is important to know that many tickets can also be in the same name as the original buyer - which is also valid for entry. They urge the ticket Seller to update all info, however, this is not always possible and also not necessarily important or visible on the ticket for all ticket types. If your Seller is a trusted Seller with Ticombo, the information Buyers receive from this Seller is in their experience very trustable.
Anyway, you should not worry, you are fully protected by their TicProtect Guarantee.