Some stores can retain your money for security purposes. This can apply to other establishments as well such as hotels or car rental companies.
Why do gas stations do this?
It is security measure.
How does all this work?
Imagine you're at the pump, swipe your card, and bam, they send a request to the card issuer for a fixed amount, which could be more than what you intend to spend. From $1 to over $100, depending on the gas station. The blocked amount might be displayed on the payment screen so you're not caught off guard.
Now, the gas station might block, let's say, $50 when you're only spending $20. And with gas prices going up, that blocked amount could be even higher. It's like they're setting a limit so you can fill up without having to make two separate transactions.
The crucial thing to note is that when gas stations decide on the preauthorization amount, the card companies have no control over how long this money is held.
With a debit card like the Comun debit card, this money will be held, and you won't be able to use it until the final amount of your transaction at the gas station is authorized. This usually takes 7 days but can take longer depending on the gas station.
How to avoid this problem?
Well, if you want to avoid the preauthorization or minimize its impact using your Comun debit card, here's a tip:
Pay inside and enter your debit card PIN. This way, the funds are unlocked almost instantly.