Need help unclogging a toilet and basic inspection

Hi there, I’m looking for a handyman to unclog a stubborn toilet and do a quick check to ensure there are no underlying issues. The toilet is currently slow to flush and occasionally overflows when flushed hard. Please bring appropriate tools (plunger, auger) and be prepared to explain what caused the issue. I’d prefer a tidy, respectful person who can also provide recommendations to prevent future clogs. Location: Ireland, apartment bathroom. Availability on weekdays, and I’d like the job completed this week if possible. Please include your estimated time and any additional safety measures.