Preaching is done virtually if at all. So, this sentence does not make any sense:
Because of this, many have also adjusted the way they support the worldwide preaching work by making their donations online.
The apps are free of cost, internet is already paid for by the user, why does WT need more money to support worldwide preaching works as there is hardly any worldwide preaching work that is on account (dollars) of WT?
His first name:
Brother Gajus Glockentin
sounds like gajes in Dutch ......
Anyway, this guy has many occurrences on Google