My extension is in a few months, previously I have done it based on income. 

My income is going down a bit at the moment, and its possible it may dip below 40k on the odd month, I do have the money in my thai bank if necessary, but that also dips below the 400k mark sometimes. 

I dont want to bring money from my home account if not needed. 

I think with retirement extension there is a combo method of savings and income. is there this option for marriage extension or not?

 

 

No, that option is not available for marriage extension.

It's one or t'other.

You could use the 400k baht option to apply for an extension.based upon marriage. You only have to keep the 400k baht in a Thai bank for 2 months prior to the day you apply.

There is no combination option for a extension based upon marriage.

I'm not in favour of them but it may be time for the OP to look up an agent.