The transactions you listed here have too low of a transaction fee. This is due to increased transaction fees for the past several months and poorly written wallet software used by your customers. It seems that their wallets set a fee of 65 satoshis/byte, which is much too low to be accepted quickly now. Unfortunately, as the receiver of the transactions, there isn't much that you can do.
You have a few options here. You can wait and hope it confirms, wait for the transaction to be "forgotten" by the network, attempt a CPFP transaction, or ask a miner to confirm it for you.
For the third option, we need to know what whether you have access to the private keys of the address that received the Bitcoin.
For the fourth option, you can contact the users
Quickseller and
macbook-air. You can also try using
https://www.viabtc.com/tools/txaccelerator/ to "accelerate" your transaction.