Hi CheriLIR,
Thank you for reaching out Microsoft Community. We're sorry for the inconvenience this has caused you.
Jiggling the cord to get it to work, for me it seems annoying and to tell you honestly, I don't have any idea if the Surface Pro 4 chargers will still be reproduced or what not. Considering that the Surface Pro 3 has been discontinued and to based it on how I see it, sooner or later the Surface Pro 4 devices will be then discontinued, too and no reproduction will be done for it's accessories including the charger.
However, those chargers we have for Surface Pro 5 6 and 7, that works with Surface Pro 4 so if you would like to purchase a new charger with higher PSU watts, then that's totally fine. On the other hand, if you would like to get a replacement exemption for the PSU of your Surface device, I highly recommend to contact support to check if this can be honored.
If this answers your question, feel free to mark this post as an answer. Otherwise, don't hesitate to respond to this thread if there's anything else that I can assist.
Kind Regards,
Crest_Z