There is no official plans for a wipe as of yet. And if it did happen, you would get your money back in the form of Cash Points so don't worry about that.
It is easy to say, it is easy to return the money in the form of cash in the game ... but what about the time spent? Are they going to return it to us? unfortunately the friend is right, he cannot do one wipe after another and make us waste the time invested, so they will only alienate many people ... on the other hand if this is something inevitable then at least make up for it making the game easier to level and that it does not take us so long to reach the maximum level or that it does not take us so many hours to farm just one blue stone uprade (imagine a purple).... I have also invested money in the game and I have invested a lot of time in the game that eliminating everything again is simply a lack of respect for the consumer ... if they are going to do something as strict as wipe then make up for it ... look for solutions .... do something, don't go for how easy it is to "return the money in the form of cash "