I transferred about 0.54 BTC and I cannot find this on Blockchain.com. Can anyone help? I'm hoping someone more onto it can help me find or understand exactly what happened when I xferred my BTC from an exchange (Dasset) to my wallet.

I transferred about 0.54 BTC to bc1ql8wxn65d7crka2gr4f3gcgnynv23hvqg6akxef

When I searched for transactions under this address nothing appears on Blockchain.com.
I know I have transferred to this wallet before but I can't even see those transactions.

Thanks in advance.
Firstly, I would use Blockstream.info or mempool.space, not blockchain.com for your online block explorer. 

Second, depending on the exchange, they could batch withdrawals at a certain time each day, or they could set a very low fee, which means it would take a long time to be confirmed. 

As was said in the comments, you could've been scammed. I have never heard of Dasset before. 

Lastly, for each transaction, generate a new receive address to ensure privacy.