I can be polite, even though I feel like shouting and screaming and ranting
"I apologise, I did not realise you had not yet received the payment as when I have bought off of Marketplace before the seller has received the payment quicker than you have in this case.
However, I do not appreciate you suggesting in the feedback you left for me that I have sent numerous "threatening" emails to you, as after you informed me that you no longer had the product to sell, I only sent you one email (before this one) which was in no way threatening.
As for suggesting that I do not receive a full refund, when you put the item up for sale, you entered a contract saying that if someone bought the item, you would give them the item, or a full refund if that was not possible. If you do not issue a full refund, you will be breaching this contract.
If you continue to threaten/blackmail me as you did in your previous email, I will be forced to take further action through Amazon.
Natalie"
However, I do not appreciate you suggesting in the feedback you left for me that I have sent numerous "threatening" emails to you, as after you informed me that you no longer had the product to sell, I only sent you one email (before this one) which was in no way threatening.
As for suggesting that I do not receive a full refund, when you put the item up for sale, you entered a contract saying that if someone bought the item, you would give them the item, or a full refund if that was not possible. If you do not issue a full refund, you will be breaching this contract.
If you continue to threaten/blackmail me as you did in your previous email, I will be forced to take further action through Amazon.
Natalie"