I do not click any links, ever, I don’t even download anything unless it’s 100% verified, however I recently purchased Robux and it was removed from my account 20-30 minutes later. I checked transactions and it was from four accounts, so I went to my session logins and it had multiple people from Portland and the UK signed into my Roblox Account
There can be a multiple reasons as of why this might of occured i suggest logging out all the sessions from the account and also setting account password to something stronger and doing full virus scan on the device you could also contact roblox support for further support at Roblox Support