Is there a blacklist for Indian nationals in Thailand immigration?

Hello 👋 everyone

I have small questions to ask and what a suggestion from you guys, i am from india and living in thai from past 2 years and this is my 3rd year in Thailand and i am married to thai and i have NON O visa and I completed 2 year of renewal already now this month is my 3rd time renewal so i have small problem with immigration division officer who process my visa for renewal as i am from india that officer have a statement like this that i am from india so we indians are blacklist country for Thailand so its not possible to process my visa and if i want to process my visa have to pay under table 20,000 THB to that immigration office that too out side the immigration office or els she will convert my visa to covid extension for 60 days i have to break my non o visa which I already done from last 2 years, as last year on 2021 visa extension also that office black mail that if i dont pay 20,000THB they will change my visa to covid visa and i no have choose i had paid 20,000 THB to that immigration office out side the office as under take and this years also she is asking me for 20,000 THB again

So, i want to know from you guys is this really like this that we are a blacklist country and i have to 20,000 THB UNDER TABLE to get my visa done this year ?????