2

Eft is not a list/array. This is an object.
You can always try to add eft and in value put: {“provider”:“ozow”}
However, Bubble will probably escape this part and some API will not parse this object correctly.
You should instead, delete all your parameters, and put the body json

{
	"amount": <amount>,
	"currency": "<currency>",
	"email": "<email>",
	"eft": {
		"provider": "<eft_provider>"
	}
}

Also, add header Content-type: application/json