i tired search in google, GPT even Bard nothing change in this code, laravel 5 problem

so i have this code in laravel 5

Customer::where('type', 1)->join('tb_customer_connector', 'tb_contact.id_customer', '=', 'tb_customer_connector.id_customer')
        ->join('tb_technology_tag', 'tb_customer_connector.id_product', '=', 'tb_technology_tag.id')
        ->where('tb_technology_tag.about', $id)
        ->get();

and simply this code i use for make a tabbar that make a fillter based on the technology.about but if a customer have two technology with same about it will make the customer show duoble because duoble connector

duplicate customer image

i already use district and groupBy and other but nothing changes

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