Very. Crypto Please’s non-custodial solution means that even we can’t access your wallet and its funds. We cannot access the content of your links and cannot intercept and retrieve the crypto instead of you or the recipient.
The link generated by the Crypto Please app are limited to a one-time use after the crypto is claimed by the recipient. The same link cannot be used to claim crypto into another account; after the first use, the link becomes inactive and thus invalid.
If at all, you need to cancel the transaction you can do so by clicking on the generated link yourself. This would ensure that the crypto is credited to your wallet (no deduction from your wallet) and thus inactivating the generated link.
Your funds are safe and your transactions are secure. Always.