If you paied 4 times you are in line for 4 units.
Took the following txt from the wesite and to me it id clear were to send my email if needed.
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If you need information specific to your shipping, billing and other commercial matters, you can drop us a mail to hfsignals¡¯ inbox at gmail. The mailbox is in the name of hfsignals followed by the regular gmail.com.
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Ad, PE1GIJ
