Problem Question: Christian has been operating a bakeryfcoffee business called YumYums 2 U (YYZu) which went well for the rst year, slowed down by 20% for the second but hit a major downturn in year 3. The contract has 2 years, 1 month remaining on a ve-year lease. Business dropped off substantially in March-June 2020 as the COVIDl9 restrictions, distancing requirements and customer reactions to home isolation regulations impacted all the merchants' business in that area (except for the store that sold toilet paper and hand gel). COVE) restraints caused a range of issues around customer access and, more broadly, self- isolation has meant customers were not keen to head out for cake and coffee. Business has picked up a bit in June but it is expected this downturn will run for another two months before things return to normal levels of operation. Christian discussed this with his landlord, LL, and explained he was concerned he might have to close up shop permanently if business didn't improve. LL responded: 'Not to worry. We can drop your rent by 40% until the end of your lease to make up for the hassles and you can run some terric door buster specials to make sure all those loyal clients gure out it is worth the hassle to get here. You are a good tenant; you do awesome lamingtons and ANZAC biscuits and I have no desire to see you go out of business or risk losing your tenancy.\" Christian was delighted, told LL that was great and he would, as suggested, immediately run a couple of weeks of 2 for 1 product specials. He proceeded to run the specials and business went back to year 2 levels at the end of June. Better yet, the area around the store was renovated by the local council during the COVE) months and has left the area looking fantastic with lots of potential for decent atmospheric outdoor coffee and cake catch ups. LL was thrilled with the upgrade as he did not have to pay towards this council initiative. Unfortunately, however, Christian has just received an email (on 10 July 2020) from LL indicating that now construction is done, LL intends to put the rent back up in September to the prior level in line with the contract (which still has another 2 years and 1 month to run until the end of its ve years). Christian tells LL he does not want to pay the full rent again and is enjoying the extra money in his pocket om the 40% discount LL gave him. LL responds by telling Christian the discount will end in September and LL says he is also thinking about claiming back the 40% discount in rent, backdated to June. Christian is not happy and, knowing you are a super business law guru now, has sought your advice as to his legal rights, obligations and options against LL. Explain the relevant law and how it applies to his situation, including recommendations as to the likely prospects of success around each. Be specic and reference appropriate legal authority. To add to his run of bad news, Christian tells you he has just purchased 10 litres of a product which was advertised on the website and in store as 'hospital grade hand sanitiser containing 7 5% alcohol'. It came with an automatic dispenser machine for customers to use the sanitiser n--- \"i