I may be misunderstanding what your suggesting I could do here. The Transaction in question here did NOT originate from my phone app. It is (however) my bitcoin that I had sent to another party. I then withdrew those coins from their website using their bitcoin withdraw system.
When bitcoins are sent to you, and they are not yet confirmed, they are technically still spendable by you. Some wallet software (such as the one you are currently using) will either not provide this ability to you, or will hide it and require you to turn on advanced tools to use that ability. (because spending unconfirmed bitcoins can open you up to some frustration situations in some circumstances)
Other wallets, such as Electrum, make this a bit easier to do.
So, the suggestion that was made (if you become impatient about waiting for the low fee transaction to confirm), is to create a backup of your current wallet, and then import that backup into an Electrum wallet where you would then be able to perform the rest of the suggestion.
This will give you access to all of your bitcoins and transactions from within the Electrum software instead of the wallet software you are currently using.
The next part of the suggestion is to create a transaction in Electrum that spends the bitcoins that you are waiting to receive (the ones that have been sent to you but which are not yet confirmed). You can create this transaction to just send the bitcoins to another address in your own wallet, so that they are still yours after this new transaction completes.
The trick is to pay a high enough fee for this new transaction so that it covers the cost of both itself and the shortfall on the transaction you are waiting on.
Because of the way Bitcoin works, the miners are UNABLE to confirm this new transaction of yours unless they ALSO confirm the transaction you are waiting on. So, since miners (and mining pools) are incentivized by their desire to pay for their equipment and electricity (as well as earn a profit), they will confirm both transactions at the same time to get the fees you paid. You are effectively increasing the fee on the transaction you are waiting to receive by adding that extra fee to a new transaction that REQUIRES confirmation of the original.
The other thing you may have noticed from my description is that if it turns out the site you interacted with is NOT legitimate and that transaction is removed and NEVER confirms, then the new transaction you created will also never confirm (since it entirely depends on the existence of that initial transaction), and so you won't have risked any additional bitcoins. The second fee will never be spent, and the entire chain of two transactions simply never happens.
If you know the basics, like sending and receiving address
LoyceV, I'm disappointed. "sending address"? Really? I thought you knew better.