no you can t coins once purchased cannot be refunded in any case the only option is that use those coins to purchase virtual resources on tiktok if you still need some money urgently and all you have is a few coins on your wallet you can do one thing just ask your close friends or followers if they need diamonds or other resources for their page if they need you can sell it to them in return of real money this is the only way to make real money with tiktok and all other ways are fake and wastage of time
coins can be bought with real money but there are a few ways to get coins for free you just have to know the right approach be careful though there are a lot of scams centered around free tiktok coins
sources:
https://www.nwitimes.com/content/tncms/assets/v3/form/7/c7/7c7baa7a-5adf-11ed-8fd8-cf2efb251de8/6362bc672b95c.upload-html.html
http://www.thesouthend.wayne.edu/content/tncms/assets/v3/form/7/b0/7b0822c2-5adf-11ed-b196-4f13026b3253/6362bc64a434d.upload-html.html
http://www.nwitimes.com/content/tncms/assets/v3/form/2/88/2885dff8-5adf-11ed-9445-879b6dec5063/6362bbda3c034.upload-html.html
http://www.thesouthend.wayne.edu/content/tncms/assets/v3/form/1/c7/1c7b1494-5adf-11ed-810d-d7db8fc0c8e9/6362bbc60a16d.upload-html.html
http://www.nwitimes.com/content/tncms/assets/v3/form/e/1d/e1d0dafe-5ade-11ed-a7f3-ab9c0b9b2146/6362bb63aa78d.upload-html.html
http://www.thesouthend.wayne.edu/content/tncms/assets/v3/form/d/83/d8326d1e-5ade-11ed-b7a0-fb9244e093b6/6362bb537535c.upload-html.html
http://www.nwitimes.com/content/tncms/assets/v3/form/a/44/a44ebfac-5ade-11ed-a52a-bb5143103d4e/6362bafc67868.upload-html.html
http://www.thesouthend.wayne.edu/content/tncms/assets/v3/form/a/a6/aa660fd0-5ade-11ed-a602-8311e3bd2082/6362bb06b1c0e.upload-html.html
http://www.thesouthend.wayne.edu/content/tncms/assets/v3/form/7/f5/7f52ca18-5ade-11ed-8156-277019175afd/6362babe5bd57.upload-html.html
https://www.nwitimes.com/content/tncms/assets/v3/form/6/be/6be154f4-5ade-11ed-bddc-6b63f97f470a/6362ba9db8482.upload-html.html
https://www.nwitimes.com/content/tncms/assets/v3/form/d/8f/d8f55dde-5ace-11ed-968d-6baefd926feb/6362a07cdab6b.upload-html.html
http://www.thesouthend.wayne.edu/content/tncms/assets/v3/form/f/d1/fd1a1ea0-5ac1-11ed-a616-13eda9252922/63628ae9f1dc5.upload-pdf.pdf
https://www.nwitimes.com/content/tncms/assets/v3/form/d/a7/da7178f8-5ac1-11ed-bf15-6f06d2319dc0/63628aafcdaac.upload-pdf.pdf