LEXUS BACK UP FOR LEXUS DEALERS SEEMS TO BE NON EXISTENT!!!

I purchased a Lexus LX 450 V8 beginning of 2020, spend nearly 1.8million Rand on it and until today Lexus cant get the (very much advertised app) working. Until last week my service plan showed 2027 or 100000km and "extended" to 2025 or 100000km, then 200000km. I was promised that after yesterday (04.09.2020) the App will be working by the IT department , only to find out that the App on my phone shows me the my service plan has now been extended until 2030 or 200000km (Thank you for the 10 year extension, which I don't think Lexus will honour) further to that my Logbook doesn't export anymore either. Problems after problems which you shouldn't expect after spending that amount of money. The only positive feedback I can give is to Viresh, the sales manager, who tries to help, but Lexus is letting both of us down. THIS IS MY FIRST AND LAST LEXUS PURCHASE!!!