Multilanguage message template

Hi,

We are using Newsletter Subscription plugin for sending discount coupons when customer activate newsletter subscription but we have problems with multilanuage tempaltes.
Our configuration - multilanguage:
Store1: domain.com (languages: English / Italian). default language = English.
If customer change language to italian and subscribe to newsletter he gets message in italian language, but after newsletter activation he gets message in englisg language (not italian).

It's look like that you get languageId from store (defaultStore language id). Is possible to get languageid from workContext? _workContext.WorkingLanguage.Id;

Best regards

What nop version do you use?
I checked the code and the plugin reads languageID  from customer session.

We are using 4.10

I use this code

                var languageId = store.DefaultLanguageId;
                var customer = customerService.GetCustomerByEmail(subscription.Email);
                if (customer != null)
                    languageId = genericAttributeService.GetAttribute<int>(customer, NopCustomerDefaults.LanguageIdAttribute, subscription.StoreId);

Do you use the last release of the plugin?