

Ecclesiastes 9:5 says dead is dead, directly contradicting everything about any afterlives or heaven. Christians pick and choose which parts to follow because they have to, it’s literally impossible to follow the entire thing.
For the living know that they shall die: but the dead know not any thing, neither have they any more a reward; for the memory of them is forgotten.
It also goes on to say go have fun and live your life. That does not some compatible with the strict puritan Christianity most seem to follow.
Go thy way, eat thy bread with joy, and drink thy wine with a merry heart; for God now accepteth thy works.
[…]
Live joyfully with the wife whom thou lovest all the days of the life of thy vanity, which he hath given thee under the sun, all the days of thy vanity: for that is thy portion in this life, and in thy labour which thou takest under the sun.
On your end there’s not much to consider here. You can let them know they refunded the entire order, chances are they’ll just write it off. If they ask you to send it back it should be entirely at their expense, do not pay to send it back.
On their end there’s more going on. It sounds like they charged you for an item they knowingly did not ship then claimed the refund was already in progress when you complained. They also gave you a damaged item and claimed to be unable to refund that, which in most developed countries would be a breach of consumer regulations. This sounds an awful lot like that company is attempting to scam people.