What is spl token?
For Ethereum Blockchain network you can use a single wallet address to receive all tokens generated from Ethereum Blockchain network like SHIB, MONA, HOGE, USDT... For Solana Blockchain network for example you want to receive money If you are using USDC (Sol), you must create an account corresponding to that type of Token, which Solana network calls a linked account (SPL Token). Each account type associated with different types of Tokens will have different addresses, if you want to receive 10 different types of Tokens you must create 10 affiliate account addresses.
You can Contact via OpenChat if the type of Token you want to use is not in OnePay's support list