Amasty Resolution Center

How to get low version of amasty code?

Hi Amasty!
      Yesterday i had left message in your offical online support chat, but so far,  the offical online support is offline all the time.so i think i can get help via this way.
      I am a janpense nestle software engineer, our team is in process of upgrading magento of 2.4.7,  before the amasty module code is located in app/amasty, not manage via composer. now we had already bought your the latest version of amasty extension. i have the public key and private key, we are going to convert git code manage into composer manage. i encoutered a issue that before our team use di way to modify the amasty related business, we do not confirm where our team had modified related amasty code, we hope the latest version of amasty can apply the current business logic so i hope we can get the origin amasty conresponding version code in order to confirm the diff between the current version and latest version of amasty code.  so far i can not conresponding the code via get composer require amasty/module-multiple-coupons-subscription-pack:1.0.3 amasty/promo:1.0.0 amasty/smtp:1.1.5,  those version code do not existed in compose amasty respository.
      So we want get the amasty/module-multiple-coupons-subscription-pack:1.0.3 and amasty/promo:1.0.0 and amasty/smtp:1.1.5 origin code. how can i get those code?  Looking forward to your reply, thank you!