O you have maxed out your previous stays, and have applied for extension.
O you have more than 1 consecutive “visa free” trip
O you are doing land crossing
O you are staying in “free” accommodations and don’t have documentation to show you are a bona file tourist.
O Nong Khai is not the friendliest crossing
I actually think your Philippines passport is a plus factor in this case, as it sets you apart from the typical long-stayers.
Sorry, I don’t think anyone can recommend any surefire method to get you across. The visa “rules” are to prevent this profile of travel. If you are already at the border, I would give this a try, and to bring as much documentation (any receipts, websites, articles, references, recommendations, photos) to prove your are not a long term stayer….and money! It really depends on the immigration officer serving you. If stopped, ask to speak to a supervisor, and have them/yourself call your friend. This will cut through any language misunderstandings. If possible, have them waiting on the Thai side of the border
You need to get a receipt (from a Thai bank) for receiving that transfer, otherwise you might not be able to repatriate that sum once you sell the property.