All need to realize, merges always have one "STRONG"" server with some "LESS PAYINGS" servers. look at every merge batches. this is means to benefit the "strong" server and encourging "LESS Payings" to spend more to compete.
this is how it should be BUSINESS. If you have problem? Spend more on server so when merge you will be "STrong server" and merged with less payings. NOT OasisGames problem if you have under spend server