get_query_var returns wrong value

I create a rewrite rule with different params

add_rewrite_rule(
    '^shop/(\b(thanks)\b)/([0-9]+)/([0-9]+)$', 
    'index.php?pagename=shop&shop_endpoint=$matches[1]&ref=$matches[2]&key=$matches[3]', 
    'top'
);

add_filter('query_vars', function($vars){
    $vars[] = 'shop_endpoint';
    $vars[] = 'ref';
    $vars[] = 'key';
    return $vars;       
}, 10, 1);

I have the following url
https://www.example.com/shop/thanks/2956789/6212/

If I dump

get_query_var('schop_endpoint');
get_query_var('ref');
get_query_var('key');

the output is

• thanks
• thanks
• thanks

and not

• thanks
• 2956789
• 6212

I does not see the mistake who can help me a little?

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