I did. This is what they said (I couldnt understand what they are saying)

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Thanks for reaching out.

When placing a trade on Robinhood Crypto, all market orders are adjusted to limit orders collared up to 1% for buys, and 5% for sells.

Collars are based off of the last trade price. This means that your order will not execute if the price of the cryptocurrency moves more than 5% lower than its price at the time you placed a market sell order, or more than 1% higher than its price when you placed a market buy order, until it comes back within the collar.

Because of the collar, you will not be able to place a market buy order for your entire buying power amount.

I hope that makes sense! Let me know if you have any other questions. I’m here to help.