Buying FIFA coins is definitely a bit of a grey area because although it's not illegal in real terms, you are breaking the rules of EA Sports' terms of service. FIFA Ultimate Team (FUT) allows players to purchase packs and players using in-game currency, FIFA coins, but using third-party SLPs is against the game's Terms of Service. EA includes Buying Coins Through a Credit Fraud as one of the activities that are forbidden in FUT and says that infringing this rule can lead to actions such as account suspension or permanent ban. EA's terms of service stipulates that the only legitimate way to obtain coins is via gameplay or by buying FIFA points and using them to purchase packs, trade for coins.
These policies are indeed rigorously enforced by EA. EA has banned more than 30,000 accounts for buying and selling third-party coins in 2021 so far. It is part of its wider push to uphold what they called a "fair and balanced game economy", which encompasses preventing players from getting ahead by just buying their coins.
Even today, many players still buy fifa coins from third-party websites like ItemD2R or MMOGA where you can get 100.000 coins for a sum of $10 — $50 but risk getting banned from the game for life. Coin transfer, which frequently happens through player auctions, is a hallmark for EA's algorithms and can trigger investigations and penalties. These restrictions are in place to keep the economy balanced, so that richer players can't really "pay to win".
Nevertheless, third-party coin sales are still popular despite the threats associated with it. There are strict distribution methods to mitigate risk, and attempts are being made through some platforms like ItemD2R. But the TOS violation is still intact, so anyone engaging in these transactions is doing so at their own peril.
That is the sort of challenge that EA's General Manager, Nick Wlodyka said a week ago when he stated, "Our goal is to keep a level playing field for all styles of play. That includes our ongoing work against coin buying and selling." FIFA also suffers greatly in a way that when the discount sale of FIFA coins attracts people to buy them,t hey might want to do at all costs,body long-term benefits would not be obtained.
Players need to understand the risks involved and take a look at EA's official guidelines if they are thinking about buying FIFA coins the usual way. If you are still looking for buying more coins then checkout buy fifa 15 coins.