I wonder if the australian customer support email address is related to Australia's surprisingly strict consumer rights laws. [0] They even offer a form that helps write the specific sort of complaint you should send [1] that presumably, may jump start the process in removing the ads if you had bought the TV under the impression it would continue to work as advertised originally.

[0] https://www.accc.gov.au/consumers/buying-products-and-servic...

[1] https://www.accc.gov.au/consumers/problem-with-a-product-or-...